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United States Patent | 6,208,783 |
Wach | March 27, 2001 |
A device for filtering light propagating within waveguides, including optical fibers. The device includes an optical filter, a first waveguide section and a second waveguide section positioned between the filter and the first waveguide section. The diameter of the second waveguide section is greater on the end proximate to the optical filter than on the end opposite the optical filter, typically tapering from one end of the second waveguide section to the other. Benefits include reduction of power density, collimation of light for filtering and/or facilitation of optical coupling, and robustness.
Inventors: | Wach; Michael L. (Atlanta, GA) |
Assignee: | Cirrex Corp. (Alpharetta, GA) |
Appl. No.: | 280413 |
Filed: | March 29, 1999 |
Current U.S. Class: | 385/43; 385/27; 385/115 |
Intern'l Class: | G02B 6/2/6 |
Field of Search: | 385/43,12-24,27,37,115-123 |
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